Match the following complexes in List-$I$ with their colors in List-$II$:

List-$I$ (Complex)	List-$II$ (Color)
$A. [Ni(en)_3]^{2+}$	$I. \text{Green}$
$B. [Ni(H_2O)_4(en)]^{2+}$	$II. \text{Blue}$
$C. [Ni(H_2O)_6]^{2+}$	$III. \text{Pale blue}$
$D. [Ni(H_2O)_2(en)_2]^{2+}$	$IV. \text{Violet}$

• A
  $A-IV, B-I, C-III, D-II$
• B
  $A-I, B-II, C-III, D-IV$
• C
  $A-IV, B-III, C-I, D-II$
• D
  $A-I, B-III, C-II, D-IV$